Home / 1,321,127,611.41-1,982,464,165.56-492,653,607.69

Finding the Fourth Proportional to 1,321,127,611.41, 1,982,464,165.56 and 492,653,607.69

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Solution

The fourth proportional to 1,321,127,611.41, 1,982,464,165.56 and 492,653,607.69 is: 739,268,572.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,127,611.41 : 1,982,464,165.56 = 492,653,607.69 : x
  2. Step 2: Convert to fraction form
    1,321,127,611.41/1,982,464,165.56 = 492,653,607.69/x
  3. Step 3: Cross multiply
    1,321,127,611.41x = 1,982,464,165.56 × 492,653,607.69
  4. Step 4: Simplify right side
    1,321,127,611.41x = 976,668,123,279,279,360
  5. Step 5: Solve for x
    x = 976,668,123,279,279,360/1,321,127,611.41
  6. Step 6: Final answer
    x = 739,268,572.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.